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The Asian project for collaborative derivation of reference intervals: (1) strategy and major results of standardized analytes

Authors
 Kiyoshi Ichihara  ;  Ferruccio Ceriotti  ;  Tran Huu Tam  ;  Shigeo Sueyoshi  ;  Priscilla M.K. Poon  ;  Mee Ling Thong  ;  Yasushi Higashiuesato  ;  Xuejing Wang  ;  Hiromi Kataoka  ;  Akemi Matsubara  ;  Shu-Chu Shiesh  ;  Dewi Muliaty  ;  Jeong-Ho Kim  ;  Masakazu Watanabe  ;  Christopher W.K. Lam  ;  Lothar Siekmann  ;  Joseph B. Lopez  ;  Mauro Panteghini 
Citation
 CLINICAL CHEMISTRY AND LABORATORY MEDICINE, Vol.51(7) : 1429-1442, 2013 
Journal Title
 CLINICAL CHEMISTRY AND LABORATORY MEDICINE 
ISSN
 1434-6621 
Issue Date
2013
MeSH
Adult ; Age Factors ; Aged ; Analysis of Variance ; Asian Continental Ancestry Group ; Cytokines/blood ; Cytokines/standards* ; Electrolytes/blood ; Electrolytes/standards* ; Enzymes/blood ; Enzymes/standards* ; Female ; Gonadal Hormones/blood ; Gonadal Hormones/standards* ; Humans ; Immunoglobulins/blood* ; Male ; Middle Aged ; Reference Values ; Sex Factors
Keywords
common reference interval ; multicenter study ; nested ANOVA ; regionality ; standardization
Abstract
BACKGROUND: A multicenter study conducted in Southeast Asia to derive reference intervals (RIs) for 72 commonly measured analytes (general chemistry, inflammatory markers, hormones, etc.) featured centralized measurement to clearly detect regionality in test results. The results of 31 standardized analytes are reported, with the remaining analytes presented in the next report. METHOD: The study included 63 clinical laboratories from South Korea, China, Vietnam, Malaysia, Indonesia, and seven areas in Japan. A total of 3541 healthy individuals aged 20-65 years (Japan 2082, others 1459) were recruited mostly from hospital workers using a well-defined common protocol. All serum specimens were transported to Tokyo at -80°C and collectively measured using reagents from four manufacturers. Three-level nested ANOVA was used to quantitate variation (SD) of test results due to region, sex, and age. A ratio of SD for a given factor over residual SD (representing net between-individual variations) (SDR) exceeding 0.3 was considered significant. Traceability of RIs was ensured by recalibration using value-assigned reference materials. RIs were derived parametrically. RESULTS: SDRs for sex and age were significant for 19 and 16 analytes, respectively. Regional difference was significant for 11 analytes, including high density lipoprotein (HDL)-cholesterol and inflammatory markers. However, when the data were limited to those from Japan, regionality was not observed in any of the analytes. Accordingly, RIs were derived with or without partition by sex and region. CONCLUSIONS: RIs applicable to a wide area in Asia were established for the majority of analytes with traceability to reference measuring systems, whereas regional partitioning was required for RIs of the other analytes.
Full Text
http://www.degruyter.com/view/j/cclm.2013.51.issue-7/cclm-2012-0421/cclm-2012-0421.xml;jsessionid=CE72141C29A9B43937E7121B882CB9E5
DOI
10.1515/cclm-2012-0421
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jeong Ho(김정호) ORCID logo https://orcid.org/0000-0003-2479-0548
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/88639
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